name: Linux Server

on:
  push:
    branches: [linux-server-native, main]
    tags: ['v*']
  pull_request:
    branches: [main]
  workflow_dispatch:
    inputs:
      version:
        description: Version stamped into the binaries and the asset name (e.g. 1.0.3)
        required: true
        default: 0.0.0-dev

permissions:
  contents: read

jobs:
  build:
    name: Linux x64 Server
    runs-on: ubuntu-24.04
    timeout-minutes: 30

    steps:
      - name: Check out source
        uses: actions/checkout@v7
        with:
          persist-credentials: false

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y build-essential cmake libssl-dev

      - name: Set version
        run: |
          if [ -n "${{ inputs.version }}" ]; then echo "VERSION=${{ inputs.version }}" >> "$GITHUB_ENV"
          elif [[ "${{ github.ref }}" == refs/tags/v* ]]; then echo "VERSION=${GITHUB_REF#refs/tags/v}" >> "$GITHUB_ENV"
          else echo "VERSION=0.0.0-dev" >> "$GITHUB_ENV"; fi

      - name: Configure
        run: cmake --preset linux-x64 -DDINGOSDK_BUILD_MULTIPLAYER_TESTS=ON "-DDINGOSDK_VERSION=${{ env.VERSION }}"

      - name: Build server and tests
        run: cmake --build --preset linux-release --parallel 4

      - name: Run portable tests
        run: ctest --test-dir build/linux --output-on-failure

      - name: Fetch Steam libs
        # Same split as the Windows zip's DLLs: libsteam_api.so from the
        # Steamworks SDK redist, steamclient.so (+tier0/vstdlib) from the
        # SteamCMD SDK Redist depot (anonymous). Valve binaries, bundled
        # like the Windows release bundles its DLLs.
        run: |
          set -eux
          mkdir -p build/steamlibs
          curl -fSL --retry 3 -o build/steamlibs/libsteam_api.so \
            "https://raw.githubusercontent.com/rlabrecque/SteamworksSDK/main/redistributable_bin/linux64/libsteam_api.so"
          test "$(stat -c%s build/steamlibs/libsteam_api.so)" -gt 100000
          nm -D --defined-only build/steamlibs/libsteam_api.so \
            | grep "SteamAPI_SteamGameServerNetworkingSockets_SteamAPI_v01" > /dev/null
          mkdir -p /tmp/steamcmd && cd /tmp/steamcmd
          curl -fSL --retry 3 -o steamcmd.tar.gz \
            "https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz"
          tar xzf steamcmd.tar.gz
          ./steamcmd.sh +@sSteamCmdForcePlatformType linux +login anonymous +app_update 1007 +quit
          cp linux64/steamclient.so linux64/libtier0_s.so linux64/libvstdlib_s.so \
            "$GITHUB_WORKSPACE/build/steamlibs/"
          ls -lh "$GITHUB_WORKSPACE/build/steamlibs/"

      - name: Stage package
        run: |
          set -eux
          package='build/package-linux'
          mkdir -p "$package/licenses"
          cp build/linux/ReSkateServer "$package/"
          cp build/steamlibs/*.so "$package/"
          cp contrib/setup-linux-server-libs.sh "$package/"
          cp contrib/reskate-server.service "$package/"
          cp Server/README-linux.md "$package/"
          cp Server/README.txt "$package/README-server.txt"
          cp LICENSE "$package/LICENSE.txt"
          cp contrib/setup-linux-server-libs.sh "$package/"
          cp contrib/reskate-server.service "$package/"
          cp Server/README-linux.md "$package/"
          cp Server/README.txt "$package/README-server.txt"
          cp LICENSE "$package/LICENSE.txt"
          for library in rapidjson sqlite miniz bcdec; do
            cp "External/$library/LICENSE.txt" "$package/licenses/$library-LICENSE.txt"
          done
          for library in spdlog lz4 zstd steam_networking; do
            cp "External/$library/LICENSE" "$package/licenses/$library-LICENSE.txt"
          done
          cp External/fonts/*-LICENSE.txt "$package/licenses/"
          file "$package/ReSkateServer"

      - name: Upload Linux server
        uses: actions/upload-artifact@v7
        with:
          name: ReSkateServer-Linux-${{ env.VERSION }}
          path: build/package-linux/
          archive: true
          if-no-files-found: error
          retention-days: 30